fixed linters

* implemented workaround for ansible/ansible-lint#590
* bumped linter versions
* added missing proxy variables to passenv
* removed uneccesary use of hacking with flake8 hook

Change-Id: I3f50f27bf349be6ceb5dc303e206ec83abe3c458

.pre-commit-config.yaml

@@ -1,7 +1,7 @@
 ---
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.2.3
+    rev: v2.3.0
     hooks:
       - id: trailing-whitespace
       - id: mixed-line-ending
@@ -10,11 +10,9 @@ repos:
       - id: check-merge-conflict
       - id: debug-statements
       - id: flake8
-        additional_dependencies:
-          - hacking<1.2.0,>=1.1.0
       - id: check-yaml
         files: .*\.(yaml|yml)$
-  # commented to allow progressive enablement in smaller patches
+  # commented to allow progressive adoption in smaller patches
   # - repo: https://github.com/adrienverge/yamllint.git
   #   rev: v1.13.0
   #   hooks:
@@ -23,7 +21,7 @@ repos:
   #       types: [file, yaml]
   #       entry: yamllint --strict -f parsable
   - repo: https://github.com/ansible/ansible-lint
-    rev: v4.1.0a0
+    rev: v4.1.1a0
     hooks:
       - id: ansible-lint
         files: \.(yaml|yml)$

tox.ini

@@ -20,11 +20,13 @@ setenv =
     PIP_DISABLE_PIP_VERSION_CHECK=1
 passenv =
     ANSIBLE_*
+    CURL_CA_BUNDLE
     DOCKER_*
     MOLECULE_*
+    REQUESTS_CA_BUNDLE
     SSH_AUTH_SOCK
+    SSL_CERT_FILE
     TERM
-
 deps = -r{toxinidir}/test-requirements.txt
        -r{toxinidir}/requirements.txt
 whitelist_externals =
@@ -39,6 +41,10 @@ commands =
 commands = {posargs}
 
 [testenv:linters]
+deps =
+    # workaround for https://github.com/ansible/ansible-lint/issues/590
+    virtualenv==16.3.0 # 16.7.6 not working
+    pre-commit
 commands =
     python -m pre_commit run -a